{"id":"CVE-2026-98877","published":"2026-10-23T12:18:21.203","lastModified":"2026-10-26T07:17:12.160","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't advertise VLPIs if no ITS is probed\n\nWhen accidentally setting “kvm-arm.vgic_v4_enable=1” on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n“gic_domain” is NULL and the kernel attempts to access it.\n\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028\n    Mem abort info:\n      ESR = 0x0000000096000006\n\n    CPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT\n    Hardware name: linux,dummy-virt (DT)\n    pstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    pc : __irq_domain_instantiate+0x1d4/0x578\n    lr : __irq_domain_instantiate+0x1cc/0x578\n\nSet vLPI support to false at init time if the host has no ITS, so it\npropagates properly to kvm_vgic_global_state.has_gicv4.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537","tags":[]},{"url":"https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1","tags":[]},{"url":"https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516","tags":[]},{"url":"https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf","tags":[]},{"url":"https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40","tags":[]},{"url":"https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5","tags":[]},{"url":"https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}